Shoe-bottom filler.



or a as} ANT unit.

' ANDREW' THUMA, F CAMBRIDGE, MASSACHUSETTS, ASSIGN OR TO NORTH AMERICANUHEMICAL COMPANY, A CORPORATION OF MAINE.

pulp a slight cohesive nature.

words, the pulp is not dry and lifeless, but- @SHUE-JBOTTOM FILLER.

"lite Drawing.

To all whom it may concern:

Be it known that 1, ANDREW THOMA, a citizen of the United States, andresident of Cambridge, in the county of Middlesex, and State ofMassachusetts, have invented an improvement in Shoe-Bottom Fillers, ofwhich the following description is a specification. i

The object of my present invention is to provide a shoe filler materialwhich is unlike the material at present in use, in that it possesses agreat amount of resiliency (i. e. cushion-like eflect in a, shoe),equaling, if not surpassing, the resiliency of the pure and best gradesof rubber in sheet form.

My intention is to use, in place of the usual granulated form of cork,leather dust,

ground leather, or similar dissected material for a filler-body, a massof coagulated oil, which, when prepared for my particular purpose,resembles a mass of crawling maggots when disturbed.

The coagulated ground oil can be prepared in various ways so that itsshredded particles may be firm and dry, or its process.

of treatment may be one to allow a certain softness to the mass whichalso gives the In other full of life, easily aixed to suitable bind ingagents, and readily, spread within the shoe cavit i Various methods maybe pursued to solidify bodies of various vegetable oils. it may be doneby a simple prolonged boiling process, or it may be brought about bysulfurizing or treatments with acids. The methods of oxidizing of oilsare so'numerous that it is not necessary for me to enumerate them. It isprimarily the product which enters in a ground, shredded, or otherwisedlssected state into-my novel filler material that is of importancehere. i To render this crawl-'- ing ground oil matter fit to be readilyworkable so as to form a resilient, compact layer within a shoe bottom;to make it quickly conformable, adhesive and cohesive withoutdestroyingits resiliency is the second teature of my invention. For thispurpose it use a binding material such as is described in my patent No.945,294, dated January 4, 1910, (which is subordinateto my foundation orpioneer filler Patent, No. 832,002 pf Sept. 25, 1906)viz. a permanentlyelastic,

quicksetting, sticky mass contag a gelat- Specification of LettersPatent.

. Patented @ct. at, mic.

Application filed March 21, 1910. Serial lilo. 550,802.

inous base. For instance, 1 may use one and a half ounces of purecaseln, one quarter ounce of borax, six ounces of water, one half ounceof glycerin (all dissolved in a water bath into a smooth flowingsolution), five ounces of rosin (naphthalene-dissolved), two ounces waxtailings (petroleum), and one third ounce of Wilmington tar; or, eightounces of bone glue, three ounces of glycerin, eight ounces of water,two ounces of calcium chlorid, heated to 160 degrees F., and dissolvedinto a smooth flowing, permanently smooth fluid solution, to which I addfour ounces of rosin (dissolved in naphthalene), and one quarter ounceof creosote oil. The foregoing two preparations may be applied to thefiller body-in a heated condition and thus installed within a shoebottom, or they may be rendered by an addition of water i tions, 1 mayuse two ounces of corn starch (or any other starch) swelled anddissolved with soda lye z. e. arabol' or apparatin, etc., one ounce ofglycerin, (this being an example of one of the well-lmown water-soluisthe olein oil of my application, Serial No. 591,207,) eight ounces ofrosin (dissolved in v naphthalene), three ounces of petroleum tailings,one half ounce of Wilmington tar, or any combinations oflike materialswhich will provide a tenacious, elastic binding medium.

Certain of the foregoing binders are covered also in my copendingapplications Ser. No. 432,083, filed May 11, 1908,,now Patent No.1,032,312, dated July 9, 1912, and Serial No. 591,207, filed November 7,1910, now Patent No. 1,134,931, dated April 6, 1915.

The'mixing' of the filler-body material with the bindercan be done byhand or with ordinary rotating machinery for this purpose,and whenthoroughly admixed to a pasty condition, it can be spread easily with atool in the shoe bottom.

The set material (when in a shoe-bottom cavity) composed of a highlyresilient bodygiving component and a like adhesive agent admixed asstated above to stick the mass ble fat-derived oily liquids, another ofwhich 7 to the leather innersole and to hold the 'sheeted layer offiller material-in a strong tenacious manner, .is the result of mypresent invention and constitutes the said second feature of theinvention.

A third novel feature of my new filler. lies in its application withinthe shoe botv tom by providing the operator with a special solution forimmersing the working tool, or a revolving roll which is traveling in asolution of a precipitant, so that when the filler material is spreadwithin the shoe cavity, the revolving roll is not only leveling thematerial but is also uniting with it at the same time a chemicalprecipitant which makes the binding fluid substantially insoluble bywater and adds greatly to its protection during the wear of the shoe.This makes a homogeneous filler mass or layer and is in no sense amultiple-layer shoe-sole structure, which latter is thereforementioned).

Another way to overcome this moisture influence of the binding agent isthe use, within the cementitious preparation of a percentage of stickyresinous matter which, upon the drying and setting of the material, ispreponderatingly large, to protect the gelatinous base from dissolutionby water under ordinary conditions (as covered, for

example, in my copending application Serial v the filler-components ofmy new shoe-bottom filler may consist of a gluey or gelatinous No.432,983, filed May 11, 1908).

That the principles as set forth in my present invention may be broughtabout by a large and varied use of materials is very evident, and,although I do not prefer it, instead of using the ground coagulated oil,

base treated with glycerin and oils in such a manner as to become apermanently highly resilient ass, such, for example, as compo- 'sitionsused for printers rolls, which, when ground and mixed with acementitious fluid,

will produce a material similar to a sulfureted oil as previouslydescribed.

My invention includes any natural or artis ficial spongy, resilient masswhich can beground to proper size so as to become conformable as aspecial component of the filler mass, and it also includes anycombination which would require or permit the changing of the solvents,as, for instance, whenever water-absorbing components are used toprovide the filler body, a changing to a naphtha solution of theso-called rubbers which I mean to' include rubber, gutta percha, or likematerials (which would not injuriously affect the said filler bodycomponents) to bind and cement and render waterproof the otherwise tomoisture yielding or absorbing mass I consider would come clearly withinthe meaning of my present invention. I also wish to embrace variousmeans, such as fiuify, light weight materials to act as an additionalbody-giver to the resilient body forming mass. Ground or shreddedleather is the best known material of this kind in the shoe-makingtrade. This may be added while the coagulation of the rubbery matter isabout to take place, by making the same very porous (like a sponge), orit may be added to the mixed ingredients as a cheapening agent.

My Patent No. 945,294, of January 4, 1910, provides for a filler maderesilient with a comminuted filler body and a gelatinous highlyresilient binding component; such material therefore would depend mainlyfor its resiliency upon the binding means, but my present filler aims toincrease the resiliency still further by providing a filler body whichis highly resilient or cushion-like as well as the binder, so that theuse of the above described method and means for a filler materialprovides a long sought for cushion for the foot which is at the presenttime gained through felt with the so-called cushion innersoles.

My new filler material will enable the shoev ber of commerce, therebygaining an unchangeable cushion as it does not oxidize, which isimpossible with a felt innersole.

A layer of this new resilient filler may also be applied to the heelportion of a shoe, thereby forming and providing additional ease to thefoot of the wearer which is now sought for by the use of rubber heels.

Having described my invention, what I claim asnew and desire to secureby Letters Patent is: s

1. A shoe filler, comprising a resilient body of coagulated oil in adissected condition held together in a permanently and highly resilient,cushion-like, adhesive and cohesive condition. with a permanentlyresilient, sticky, cementitious binder which permits the filler toconstitute a cushion in a shoe-bottom.

2. A' shoe filler, comprising a body of dissected, coagulated oil I anda permanently sticky cementitious binder, united in a sufficientlyplastic, spreadable mass to be spread moldable mass by a cementitiousbinder of a gelatinous nature and having a resinous component, themixture, when set, having a permanently and highly resilient cushionlikecharacter adapted to constitute a cushion for a shoe-bottom.

t. A shoe filler, comprising a highly resilient body-giving componentunited with an adhesive resilient cementitious binder to a plasticconditionspreadable in a shoe-bottom before setting, and having, whenset, a

highly resilient, cushion-like, strongly ad' hesive and cohesive andunchangeable character freely yielding in all directions to pressure butwithout disturbing its strong cohesiveness, said body-giving componentconsisting at least in part of .coagulated oil in a fragmentarycondition, and the binder serving to hold the fragments together and inplace in a. shoe.

5. A shoe filler, comprising a fragmentary spongy resilient body unitedin a permanently resilient, light mass by a binder containing a solventnoninfiuencing to said body component, said binder uniting thefragmentary body material into a moldable plastic mass substantiallyWaterproof.

6. A shoe filler, comprising an unchangeable, spongy, resilient,strongly coherent mass in a plastic, moldable condition and permanentlyadherent to leather. I

7. A shoe filler, comprising a spongy, resilient mass, permanentlyadherent to leather,

ents held together with a permanently resilient adhesive cement, so asto be capable of plastic and spreadable in a shoe-bottom be foresetting, andhaving, when set, a tenacious cohesiveness and a highlyresilient, cushion-like and unchangeable character capable ofconstituting a cushion for a shoebottom.

8. A shoe filler, comprising a spongy, resilient mass in a plastic andspreadable mo-ldable condition, held together by a cementitious binderin a cushion-like condition capable of constituting the cushion of acushion-shoe.

9. A shoe filler, comprising a highly resilient, spongy and cushion-likemass suficiently sticky to adhere to leather and strongly coherethroughout the mass, said mass having a pasty condition and spreadablein a shoe-bottom before setting, and consisting of fiuify, light-weightingrediconstituting the cushion of a shoe bottom.

10. A shoe filler, comprising a moldable body adapted to be impressedinto and fill a shoe-cavity, and a top dressing united therewith to setthe same to a condition substantially insoluble by water.

lln testimony whereof, I have signed my name to this specification, inthe presence of two subscribing Witnesses.

ANDREW THOMA.

Witnesses:

EDWARD WELL, M. J. SPALDING.

